The Urban Dictionary T-Shirt

An abbreviation of the name of a type of computer invented by the computer company Apple which Steve Jobs introduced in January 1984. The Apple Macintosh was the first commercially successful computer with a graphical user interface.

At one point in time the term Apple Mac was used as an abbreviation for all computers created by Apple. Now the computers are just referred to as Apples, although you can still see the Mac link with computers such as the Mac Pro.